Abstract: A transparent plastic mark locator for determining compliance of indicia with postal specifications. The locator is a rectangular transparent plate with three perpendicular locating edges. Indicia on the plate define areas for location of postal specification information and codes including three alternative Facing Identification Mark patterns for use in a defined "FIM" print area.

Abstract: A quick opening envelope which gives full access to its interior upon opening is disclosed. The envelope is formed from a blank constructed from a single sheet of flexible material having a plurality of fold lines defining a front panel, a back panel, two side flaps and a closure flap. The back panel is attached to marginal areas of the side flap by means of a releasable adhesive material and to a central tab portion of the closure flap by conventional adhesive material. The closure flap tab is defined by a V-shaped formation of die cut perforations, each of which includes a curved portion and a straight portion. The V-shaped formation of perforations enables neat and easy opening of the envelope by lifting to separate the tab from the closure panel and the back panel from the side panels.

Abstract: A quick opening envelope which gives full access to its interior upon opening is disclosed. The envelope is formed from a blank constructed from a single sheet of flexible material having a plurality of fold lines defining a front panel, a back panel, two side flaps and a closure flap. The back panel is provided with a V-shaped array of die cut perforations, each of which includes an arc portion and a tangent portion. The V-shaped array of perforations enables neat and easy opening of the envelope.

Abstract: A mark locator has a transparent plate with edge surfaces depending from the lower surface of the plate. Indicia is provided on the plate at predetermined locations relative to the edge surfaces. When the mark locator is placed upon the surface of an article having indicia, the mark locator visually indicates whether the indicia on the article is in compliance with the appropriate specifications therefor.

Abstract: A carrier for displaying a plurality of envelopes may be mounted in a conventional loose-leaf binder, and is generally rectangular in configuration. The carrier is formed by folding a sheet about a medial line to form front and back panels, with the front panel including flap portions that are folded over and bonded to the back panel. Elongated slots are provided in the front and back panels, generally parallel to the folded edge of the carrier, and display envelopes may be partially inserted through each said slot, and carried by the carrier for display purposes. In the method for displaying envelopes, a loose-leaf binder and a plurality of such carriers are provided, and each display envelope is partially inserted into selected slots of the carrier whereby at least a portion of each envelope is visible for display purposes, and with each envelope being releasably disposed in the carrier.